4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Math worker functions.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This program and the accompanying materials
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync are licensed and made available under the terms and conditions of the BSD License
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync which accompanies this distribution. The full text of the license may be found at
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Returns the bit position of the highest bit set in a 64-bit value. Equivalent
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync to log2(x).
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This function computes the bit position of the highest bit set in the 64-bit
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync value specified by Operand. If Operand is zero, then -1 is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Otherwise, a value between 0 and 63 is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Operand The 64-bit operand to evaluate.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval 0..63 Position of the highest bit set in Operand if found.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval -1 Operand is zero.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Operand is just a 32-bit integer
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Operand is really a 64-bit integer
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return HighBitSet32 ((UINT32)RShiftU64 (Operand, 32)) + 32;